Add playground

[aleksul]

Change Summary

Add playground

Checklist

• [x] Unit tests for the changes exist
• [x] Tests pass on CI and coverage remains at 100%
• [x] Documentation reflects the changes where applicable
• [x] My PR is ready to review

[codecov[bot]]

Codecov Report

Merging #93 (51357d7) into main (4033b62) will not change coverage. The diff coverage is 100.00%.

:exclamation: Current head 51357d7 differs from pull request most recent head 2f513e1. Consider uploading reports for the commit 2f513e1 to get more accurate results

@@            Coverage Diff            @@
##              main       #93   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           43        43           
  Lines         1669      1669           
=========================================
  Hits          1669      1669           

Impacted Files	Coverage Δ
repid/_asyncify.py	100.00% <100.00%> (ø)

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